<template>
    <div>
        <!-- 三级联动 -->
        <TypeNav />

        <div class="main">
            <div class="py-container">
                <!--bread-->
                <!-- 面包屑导航 -->
                <div class="bread">
                    <ul class="fl sui-breadcrumb">
                        <li>
                            <a href="#">全部结果</a>
                        </li>
                    </ul>
                    <ul class="fl sui-tag">
                        <li class="with-x" v-if="searchParams.categoryName">
                            {{ searchParams.categoryName
                            }}<i @click="removeCategoryName">×</i>
                        </li>
                        <li class="with-x" v-if="searchParams.keyword">
                            {{ searchParams.keyword
                            }}<i @click="removeKeyWord">×</i>
                        </li>
                        <li class="with-x" v-if="searchParams.trademark">
                            {{ searchParams.trademark.split(":")[1]
                            }}<i @click="removeTradeMark">×</i>
                        </li>
                        <!-- 展示筛选信息 用v-for遍历筛选数组 -->
                        <li
                            class="with-x"
                            v-for="(prop, index) in searchParams.props"
                            :key="index"
                        >
                            {{ prop.split(":")[1]
                            }}<i @click="removeProp(index)">×</i>
                        </li>
                    </ul>
                </div>

                <!--selector-->
                <!-- 筛选菜单 -->
                <SearchSelector
                    @tradeMarkInfo="tradeMarkHandler"
                    @propInfo="propInfoHandler"
                />

                <!--details-->
                <div class="details clearfix">
                    <!-- 排列方式 -->
                    <div class="sui-navbar">
                        <div class="navbar-inner filter">
                            <ul class="sui-nav" @click="changeShow">
                                <li
                                    :class="{
                                        active: isOrder1,
                                    }"
                                >
                                    <a href="javascript:;" data-Index="1"
                                        >综合
                                        <i
                                            class="iconfont"
                                            v-show="isOrder1"
                                            :class="{
                                                [up]: isAsc,
                                                [down]: isDesc,
                                            }"
                                        ></i>
                                    </a>
                                </li>
                                <li
                                    :class="{
                                        active: isOrder2,
                                    }"
                                >
                                    <a href="javascript:;" data-Index="2"
                                        >价格
                                        <i
                                            class="iconfont"
                                            v-show="isOrder2"
                                            :class="{
                                                [up]: isAsc,
                                                [down]: isDesc,
                                            }"
                                        ></i>
                                    </a>
                                </li>
                            </ul>
                        </div>
                    </div>

                    <!-- 产品列表 -->
                    <div class="goods-list">
                        <ul class="yui3-g">
                            <li
                                class="yui3-u-1-5"
                                v-for="good in goodsList"
                                :key="good.id"
                            >
                                <div class="list-wrap">
                                    <div class="p-img">
                                        <!-- 在路由跳转的时候需要携带params参数 id -->
                                        <router-link :to="`/detail/${good.id}`">
                                            <img v-lazy="good.defaultImg" />
                                        </router-link>
                                    </div>
                                    <div class="price">
                                        <strong>
                                            <em>¥ </em>
                                            <i>{{ good.price }}</i>
                                        </strong>
                                    </div>
                                    <div class="attr">
                                        <a
                                            target="_blank"
                                            href="javascript:;"
                                            title="促销信息，下单即赠送三个月CIBN视频会员卡！【小米电视新品4A 58 火爆预约中】"
                                            >{{ good.title }}</a
                                        >
                                    </div>
                                    <div class="commit">
                                        <i class="command"
                                            >已有<span>2000</span>人评价</i
                                        >
                                    </div>
                                    <div class="operate">
                                        <a
                                            href="javascript:;"
                                            target="_blank"
                                            class="
                                                sui-btn
                                                btn-bordered btn-danger
                                            "
                                            >加入购物车</a
                                        >
                                        <a
                                            href="javascript:;"
                                            class="sui-btn btn-bordered"
                                            >收藏</a
                                        >
                                    </div>
                                </div>
                            </li>
                        </ul>
                    </div>

                    <!-- 分页器测试数据 -->
                    <Pagination
                        :pageNo="searchParams.pageNo"
                        :pageSize="searchParams.pageSize"
                        :total="total"
                        :continues="5"
                        @changePage="getPageinfo"
                    />
                </div>
            </div>
        </div>
    </div>
</template>

<script>
import SearchSelector from "./SearchSelector/SearchSelector";
import { mapGetters, mapState } from "vuex";
export default {
    // props:['k','keyword'],
    name: "Search",
    components: {
        SearchSelector,
    },
    data() {
        return {
            // 带给服务器的参数
            searchParams: {
                // 一级分类的id
                category1Id: undefined,
                // 二级分类的id
                category2Id: undefined,
                // 三级分类的id
                category3Id: undefined,
                // 选择分类的名称
                categoryName: undefined,
                // 搜索关键字
                keyword: undefined,
                // 商品展示排序方式：初始的状态应该是综合降序1:desc
                order: "1:desc",
                // 分页器：当前页次
                pageNo: "15",
                // 每一页展示商品的个数
                pageSize: "3",
                // 用户的筛选条件
                props: [],
                // 品牌
                trademark: undefined,
            },
        };
    },
    beforeMount() {
        this.setSearchParams();
    },
    mounted() {
        // 发请求之前searchParams需要有值传递给服务器
        this.getData(this.searchParams);
    },
    computed: {
        ...mapState({
            total: (state) => state.search.searchinfo.total,
        }),

        // mapGetters里面的写法，传递的数组，因为计算属性没有划分模块
        ...mapGetters(["goodsList"]),
        up() {
            return "icon-jiantoushangxia_X";
        },
        down() {
            return "icon-jiantoushangxia_Y";
        },
        orderMethod() {
            return this.searchParams.order.split(":")[0];
        },
        isOrder1() {
            return this.orderMethod == 1;
        },
        isOrder2() {
            return !this.isOrder1;
        },
        orderMethodDir() {
            return this.searchParams.order.split(":")[1];
        },
        isAsc() {
            return this.orderMethodDir == "asc";
        },
        isDesc() {
            return !this.isAsc;
        },
    },
    methods: {
        // 修改当前页面
        getPageinfo(index) {
            this.searchParams.pageNo = index + "";
            // 根据选择的页码再次发送请求
            this.getData(this.searchParams);
        },
        // 自定义事件的回调
        // 获取选择的品牌
        tradeMarkHandler(tradeMark) {
            // 整理品牌参数
            this.searchParams.trademark = `${tradeMark.tmId}:${tradeMark.tmName}`;
            // 根据选择的品牌再次发送请求
            this.getData(this.searchParams);
        },
        // 获取筛选器数据
        propInfoHandler(attr, value) {
            // 整理参数的格式
            let prop = `${attr.attrId}:${value}:${attr.attrName}`;
            // 数组去重，不应该添加相同的数据
            if (this.searchParams.props.indexOf(prop) == -1)
                this.searchParams.props.push(prop);
            // 再次发送请求
            this.getData(this.searchParams);
        },

        getData(searchParams) {
            // 向服务器发送请求获取search数据(根据参数不同返回不同的数据进行展示)
            // 把请求数据封装成一个函数，在需要时调用
            this.$store.dispatch("getSearchInfo", searchParams);
        },
        initSearchParams() {
            // 带给服务器的参数是可有可无的但是属性值为''，请求还是会把这个属性值发送给服务器
            // 但是对象中属性值为undefined在发送请求是不会携带给服务器
            this.searchParams.category1Id = undefined;
            this.searchParams.category2Id = undefined;
            this.searchParams.category3Id = undefined;
            this.searchParams.props = [];
            this.searchParams.pageNo = "1";
            // keyword 与 categoryname不用置空，会根据路由信息将其覆盖
        },
        setSearchParams() {
            // 每次修改数据时需要把上一次的数据初始化
            this.initSearchParams();
            // 挂载发请求之前先用路由传递的参数去修改data中的post参数
            // Object.assign:ES6新增的语法：合并对象
            Object.assign(
                this.searchParams,
                this.$route.query,
                this.$route.params
            );
        },
        removeCategoryName() {
            // 把带给服务器的参数置空
            this.searchParams.categoryName = undefined;
            // 把id置空
            this.initSearchParams();
            // 改变路由，删除携带的query参数再跳转到自身
            this.$router.push({
                name: "Search",
                params: this.$route.params,
            });
            /* 
            本需要再次发送一次请求，但是由于前面监听了路由的变化
            路由变化时会自动发送ajax请求，所以这里不需要再发送
            // 再次向服务器发送请求
            // this.getData(this.searchParams); 
            */
        },
        //删除品牌面包屑
        removeTradeMark() {
            // 删除品牌消息
            this.searchParams.trademark = undefined;
            // 再次发送请求
            this.getData(this.searchParams);
        },

        // 删除关键字面包屑
        removeKeyWord() {
            this.searchParams.keyword = undefined;
            this.$router.push({
                name: "Search",
                query: this.$route.query,
            });
            // 把搜索框置空
            this.$bus.$emit("clearKeyword");
        },
        removeProp(index) {
            // 整理参数
            this.searchParams.props.splice(index, 1);
            // 再发请求
            this.getData(this.searchParams);
        },
        // 修改背景 或者 排序方式
        changeShow(e) {
            if (e.target.dataset.index) {
                // 修改data中order数据
                if (e.target.dataset.index != this.orderMethod) {
                    // 修改排序方式样式
                    this.searchParams.order = this.searchParams.order.replace(
                        /1|2/,
                        e.target.dataset.index
                    );
                } else {
                    if (this.isAsc) {
                        this.searchParams.order =
                            this.searchParams.order.replace(/asc/, "desc");
                    } else {
                        this.searchParams.order =
                            this.searchParams.order.replace(/desc/, "asc");
                    }
                }
                // 再次发送请求
                this.getData(this.searchParams);
            }
        },
    },

    // 数据监听：监听组件实例身上的属性值变化
    watch: {
        //监听路由的信息是否发送改变，如果改变就再次发送请求
        $route: {
            handler() {
                this.setSearchParams();
                // 再次发送ajax请求
                this.getData(this.searchParams);
            },
        },
    },
};
</script>

<style lang="less" scoped>
.main {
    margin: 10px 0;

    .py-container {
        width: 1200px;
        margin: 0 auto;

        .bread {
            margin-bottom: 5px;
            overflow: hidden;

            .sui-breadcrumb {
                padding: 3px 15px;
                margin: 0;
                font-weight: 400;
                border-radius: 3px;
                float: left;

                li {
                    display: inline-block;
                    line-height: 18px;

                    a {
                        color: #666;
                        text-decoration: none;

                        &:hover {
                            color: #4cb9fc;
                        }
                    }
                }
            }

            .sui-tag {
                margin-top: -5px;
                list-style: none;
                font-size: 0;
                line-height: 0;
                padding: 5px 0 0;
                margin-bottom: 18px;
                float: left;

                .with-x {
                    font-size: 12px;
                    margin: 0 5px 5px 0;
                    display: inline-block;
                    overflow: hidden;
                    color: #000;
                    background: #f7f7f7;
                    padding: 0 7px;
                    height: 20px;
                    line-height: 20px;
                    border: 1px solid #dedede;
                    white-space: nowrap;
                    transition: color 400ms;
                    cursor: pointer;

                    i {
                        margin-left: 10px;
                        cursor: pointer;
                        font: 400 14px tahoma;
                        display: inline-block;
                        height: 100%;
                        vertical-align: middle;
                    }

                    &:hover {
                        color: #28a3ef;
                    }
                }
            }
        }

        .details {
            margin-bottom: 5px;

            .sui-navbar {
                overflow: visible;
                margin-bottom: 0;

                .filter {
                    min-height: 40px;
                    padding-right: 20px;
                    background: #fbfbfb;
                    border: 1px solid #e2e2e2;
                    padding-left: 0;
                    border-radius: 0;
                    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

                    .sui-nav {
                        position: relative;
                        left: 0;
                        display: block;
                        float: left;
                        margin: 0 10px 0 0;

                        li {
                            float: left;
                            line-height: 18px;

                            a {
                                display: block;
                                cursor: pointer;
                                padding: 11px 15px;
                                color: #777;
                                text-decoration: none;
                            }

                            &.active {
                                a {
                                    background: #e1251b;
                                    color: #fff;
                                    /* &::after {
                                        content: " ↓";
                                    } */
                                }
                            }
                        }
                    }
                }
            }

            .goods-list {
                margin: 20px 0;

                ul {
                    display: flex;
                    flex-wrap: wrap;

                    li {
                        height: 100%;
                        width: 20%;
                        margin-top: 10px;
                        line-height: 28px;

                        .list-wrap {
                            .p-img {
                                padding-left: 15px;
                                width: 215px;
                                height: 255px;

                                a {
                                    color: #666;

                                    img {
                                        max-width: 100%;
                                        height: auto;
                                        vertical-align: middle;
                                    }
                                }
                            }

                            .price {
                                padding-left: 15px;
                                font-size: 18px;
                                color: #c81623;

                                strong {
                                    font-weight: 700;

                                    i {
                                        margin-left: -5px;
                                    }
                                }
                            }

                            .attr {
                                padding-left: 15px;
                                width: 85%;
                                overflow: hidden;
                                margin-bottom: 8px;
                                min-height: 38px;
                                cursor: pointer;
                                line-height: 1.8;
                                display: -webkit-box;
                                -webkit-box-orient: vertical;
                                -webkit-line-clamp: 2;

                                a {
                                    color: #333;
                                    text-decoration: none;
                                }
                            }

                            .commit {
                                padding-left: 15px;
                                height: 22px;
                                font-size: 13px;
                                color: #a7a7a7;

                                span {
                                    font-weight: 700;
                                    color: #646fb0;
                                }
                            }

                            .operate {
                                padding: 12px 15px;

                                .sui-btn {
                                    display: inline-block;
                                    padding: 2px 14px;
                                    box-sizing: border-box;
                                    margin-bottom: 0;
                                    font-size: 12px;
                                    line-height: 18px;
                                    text-align: center;
                                    vertical-align: middle;
                                    cursor: pointer;
                                    border-radius: 0;
                                    background-color: transparent;
                                    margin-right: 15px;
                                }

                                .btn-bordered {
                                    min-width: 85px;
                                    background-color: transparent;
                                    border: 1px solid #8c8c8c;
                                    color: #8c8c8c;

                                    &:hover {
                                        border: 1px solid #666;
                                        color: #fff !important;
                                        background-color: #666;
                                        text-decoration: none;
                                    }
                                }

                                .btn-danger {
                                    border: 1px solid #e1251b;
                                    color: #e1251b;

                                    &:hover {
                                        border: 1px solid #e1251b;
                                        background-color: #e1251b;
                                        color: white !important;
                                        text-decoration: none;
                                    }
                                }
                            }
                        }
                    }
                }
            }

            .page {
                width: 733px;
                height: 66px;
                overflow: hidden;
                float: right;

                .sui-pagination {
                    margin: 18px 0;

                    ul {
                        margin-left: 0;
                        margin-bottom: 0;
                        vertical-align: middle;
                        width: 490px;
                        float: left;

                        li {
                            line-height: 18px;
                            display: inline-block;

                            a {
                                position: relative;
                                float: left;
                                line-height: 18px;
                                text-decoration: none;
                                background-color: #fff;
                                border: 1px solid #e0e9ee;
                                margin-left: -1px;
                                font-size: 14px;
                                padding: 9px 18px;
                                color: #333;
                            }

                            &.active {
                                a {
                                    background-color: #fff;
                                    color: #e1251b;
                                    border-color: #fff;
                                    cursor: default;
                                }
                            }

                            &.prev {
                                a {
                                    background-color: #fafafa;
                                }
                            }

                            &.disabled {
                                a {
                                    color: #999;
                                    cursor: default;
                                }
                            }

                            &.dotted {
                                span {
                                    margin-left: -1px;
                                    position: relative;
                                    float: left;
                                    line-height: 18px;
                                    text-decoration: none;
                                    background-color: #fff;
                                    font-size: 14px;
                                    border: 0;
                                    padding: 9px 18px;
                                    color: #333;
                                }
                            }

                            &.next {
                                a {
                                    background-color: #fafafa;
                                }
                            }
                        }
                    }

                    div {
                        color: #333;
                        font-size: 14px;
                        float: right;
                        width: 241px;
                    }
                }
            }
        }
    }
}
</style>